Compatibility with Cake CoreCLR

[flcdrg]

Trying to use Cake.Gitversioning with Cake.CoreCLR with a .cake file like:

#addin nuget:?package=Cake.GitVersioning&version=2.3.183

var gitVersion = GitVersioningGetVersion();

results in the following error:

Error: System.AggregateException: One or more errors occurred. (The type initializer for 'LibGit2Sharp.Core.NativeMethods' threw an exception.) ---> System.TypeInitializationException: The type initializer for 'LibGit2Sharp.Core.NativeMethods' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'git2-572e4d8': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
   at LibGit2Sharp.Core.NativeMethods.git_libgit2_init()
   at LibGit2Sharp.Core.NativeMethods.InitializeNativeLibrary()
   at LibGit2Sharp.Core.NativeMethods..cctor()

A workaround for this is to manually copy the platform-specific git2-572e4d8.dll file from tools\Addins\Cake.GitVersioning.2.3.183\lib\netstandard2.0\lib\win32\x64\git2-572e4d8.dll into tools\Addins\Cake.GitVersioning.2.3.183\lib\netstandard2.0\lib (eg. the same directory as LibGit2Sharp.dll)

Not sure if there's a better way to deal with this - but noting it here in case anyone else has the same problem.

[AArnott]

@japj Can you help here?

[AArnott]

@japj Any ideas? At the moment, the cake plugin actually references a project that dual targets net461 and netcoreapp2.0 but I want to update that to netcoreapp2.1 and net472. The cake plugin targets netstandard2.0 which is a misnomer since in fact we can't target netstandard2.0 due to the dependency on platform-specific code.

Is there a way for the Cake plugin to properly support .NET Core given our dependency on native binaries?

[japj]

@AArnott I’m not entirely sure, but I think the important part to remember here is that the nbgv nuget package is a tools/MSBuild nuget.

I have no experience with cake and addins. Perhaps there is some documentation that can help understand how that exactly works?

[AArnott]

Ah, I thought you might be the Cake guy. :)
I tried looking for docs but all of them that I could find seem to be oriented around consuming cake addins rather than authoring them.

[flcdrg]

@gep13 any ideas?

[gep13]

@flcdrg thanks for the shout out... This is more of a @devlead question. He might have ran into similar when doing the Cake.Git addin.